Pressure relief valve and method of forming the same

Details Pressure relief valve and method of forming the same Pressure relief valve and method of forming the same

2006-07-18

2006-07-18

Wilson, Gregory (Department: 3749)

Ventilation

Having inlet airway

Including backdraft preventer

C454S353000, C454S359000

Reexamination Certificate

active

07077742

ABSTRACT:
A pressure relief valve (10) includes a housing (12) with a peripheral side wall defining at least one central airflow passage and at least one flap valve element (14). The housing (12) and the flap valve element (14) have a molded connection for enabling rotation of the flap valve element relative to the housing between a closed condition overlying the at least one central airflow passage (24) to prevent airflow from atmosphere (21) into the passenger compartment (19) and an open condition permitting airflow out of the passenger compartment of the vehicle to atmosphere. The at least one flap valve element (14) moves from the closed condition to the open condition in response to differential pressure between the passenger compartment (19) and atmosphere (21). A method of manufacturing the pressure relief valve (10) includes the steps of molding a housing (12) with a first plastic material; molding a valve element (14) with a second plastic material different from the first plastic material and forming a connection between the valve element and the housing simultaneous with the molding of a latter one of the valve element and the housing.

REFERENCES:
patent: 3590858 (1971-07-01), Martin
patent: 4230150 (1980-10-01), Scaramucci
patent: 4546695 (1985-10-01), Ouchi et al.
patent: 5105849 (1992-04-01), Clough
patent: 5295478 (1994-03-01), Baldwin
patent: 5298215 (1994-03-01), Krause
patent: 5305787 (1994-04-01), Thygesen
patent: 5355910 (1994-10-01), Gies et al.
patent: 5419739 (1995-05-01), Lewis
patent: 5492205 (1996-02-01), Zhang
patent: 5601117 (1997-02-01), Lewis et al.
patent: 5617897 (1997-04-01), Myers
patent: 5715782 (1998-02-01), Elder
patent: 5727999 (1998-03-01), Lewis
patent: 5738087 (1998-04-01), King
patent: 5759097 (1998-06-01), Bernoville et al.
patent: 5904618 (1999-05-01), Lewis
patent: 6026852 (2000-02-01), Barton et al.
patent: 6119723 (2000-09-01), Kenyon
patent: 6132308 (2000-10-01), Dietz et al.
patent: 6135543 (2000-10-01), Esposito et al.
patent: 6210266 (2001-04-01), Barton
patent: 6357473 (2002-03-01), Porter et al.
patent: 6648749 (2003-11-01), Hayashi et al.
patent: 0673795 (1995-09-01), None
patent: 0874182 (1998-10-01), None
patent: 0912357 (2002-04-01), None
patent: 0861748 (2002-05-01), None

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